What ballast for 400 Watt Radiums?

[Anonymous]

Hey guys,

What do you like for 400 watt Radiums, PS ballast or HQI ballast? Why?

 

[Unarce]

I'm using mine with an HQI ballast. The ballast overdrives the bulb to a bright 12-14K appearance, with the best PAR possible for a Radium. Not sure how I'm going to feel about replacing it every 6 months, though.

 

[Anonymous]

Thanks Karl. I picked up the HQI ballast and ordered the Radiums.
Currently I am running XM's and they seem dimmer on the new ballast (I only set one up with the new ballast) have you heard of that happening?

 

[Unarce]

I have heard of XM's looking a bit more purple on HQI's, but I think that was with the higher K bulbs. You won't be disappointed with the Radium on HQI's, though.

 

[Anonymous]

I think I will like em too. I just spent more than an hour reading opinions!

 

[pwj1286]

This is the performance data for your bulb. This bulb and ballast is the best combonation. Radiums runs best, when observing: PPFD (PAR) and EFFICENCY, on HQI (M80) ballast compared to other ballasts. All bulbs generally speaking run awesome on HQI (M80), but will decrease bulb life.

• LAMP: Radium 400W 20000K SE 1
  BALLAST: PFO 400W HQI
  SHIELDED: N
  PPFD (PAR): 147
  POWER: 471 watts
  VOLTS: 119
  AMPS: 5.11
  EFFICENCY: 0.3121

Check out this site:

http://www.reeflightinginfo.arvixe.com/ ... ortemp.php


Good luck.
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